content: /**
   * Copyright (c) 2016-present, RxJava Contributors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
   * compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License is
   * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
   * the License for the specific language governing permissions and limitations under the License.
   */
  
  package io.reactivex.common.internal.utils;
  
  import static org.junit.Assert.assertTrue;
  
  import java.util.concurrent.atomic.AtomicReference;
  
  import org.junit.Test;
  
  import io.reactivex.common.*;
  import io.reactivex.common.exceptions.TestException;
  
  public class ExceptionHelperTest {
      @Test
      public void utilityClass() {
          TestCommonHelper.checkUtilityClass(ExceptionHelper.class);
      }
  
      @Test
      public void addRace() {
          for (int i = 0; i < 500; i++) {
  
              final AtomicReference<Throwable> error = new AtomicReference<Throwable>();
  
              final TestException ex = new TestException();
  
              Runnable r = new Runnable() {
                  @Override
                  public void run() {
                      assertTrue(ExceptionHelper.addThrowable(error, ex));
                  }
              };
  
              TestCommonHelper.race(r, r, Schedulers.single());
          }
      }
  
      @Test(expected = InternalError.class)
      public void throwIfThrowable() throws Exception {
          ExceptionHelper.<Exception>throwIfThrowable(new InternalError());
      }
  }
  